E-Mail

Password

Password lost

E-Mail

Logout

Register

My data

Start // Fiber Optics // Multicube Systems // Multicube Systems: In-Line Attenuators 48AT

In-Line Attenuators 48AT

Compact, rugged and highly efficient opto-mechanical unit for interconnecting two fiber cables

In-line attenuators

For single-moder or PM fiber cables
Polarization-maintaining
Adjustable optics
Adjustable attenuation 1.5 - 60 dB
Compact, rugged, transportable and sealed opto-mechanical units
Very high long-term stability, efficiency and reproducability
Can be used as interface between different types of fibers or connectors
As an option motorized

48AT-0

48AT-MD

Products

Fiber-coupled Attenuator 48AT-0

Fiber-coupled Attenuator 48AT-0

Fiber-coupled Attenuator

For single-moder or PM fiber cables
Insertion loss typically 1.5 dB, extinction > 60 dB
Adjustable
Compact, rugged, transportable and sealed opto-mechanical units
Very high long-term stability, efficiency and reproducability
Can be used as interface between different types of single-mode fibers or connectors

Fiber-coupled Attenuator 48AT-Comp

Fiber-coupled Attenuator 48AT-Comp

Attenuator

For integrating into the multicube system
Insertion loss typically 1.5 dB, extinction > 60 dB
Adjustable
Compact, rugged, transportable and sealed opto-mechanical units
Very high long-term stability, efficiency and reproducability
Can be used as interface between different types of single-mode fibers or connectors as 48AT-0

Fiber-coupled electro-magnetic shutter 48EMS-0

Fiber-coupled electro-magnetic shutter 48EMS-0

Fiber-coupled electro-magnetic laser shutter

With single-mode, PM or multimode fiber cables
Min. 25 million cycles
Compatible to the 'multicube' System
Bistable, operating frequency max. 15 Hz
Min. exposure time 11 ms
Controlled by TTL signale (flank control)
Electrical connection type M8, 4 pin female
Suitable shutter controller SK97121 (not included)

Compact, rugged, transportable and sealed opto-mechanical units
Very high long-term stability, efficiency and reproducability
Can be used as an interface between different types of fibers or connectors

Please note: This is not a laser safety shutter according to EN 60825. Additional laser safety measures may be necessary.

Electro-magnetic shutter 48EMS-6

Electro-magnetic shutter 48EMS-6

Electro-magnetic laser shutter

Clear aperture 6 mm
Min. 25 million cycles
Compatible to the 'multicube' System
Bistable, operating frequency max. 15 Hz
Min. exposure time 11 ms
Controlled by TTL signale (flank control)
Electrical connection type M8, 4 pin female
Suitable shutter controller SK97121 (not included)

Compact, rugged, transportable and sealed opto-mechanical units
Very high long-term stability, efficiency and reproducability
Can be used as an interface between different types of fibers or connectors

Please note: This is not a laser safety shutter according to EN 60825. Additional laser safety measures may be necessary.

Fiber-coupled Attenuator 48AT-MD

Fiber-coupled Attenuator 48AT-MD

Fiber-coupled attenuator, motorized

For single-moder or PM fiber cables
Insertion loss typically 1.5 dB, extinction > 60 dB
Adjustable
Compact, rugged, transportable and sealed opto-mechanical units
Very high long-term stability, efficiency and reproducability
Can be used as interface between different types of single-mode fibers or connectors
Motorized with servo motor

FAQ

48AT
- Can I use the 48AT attenuator with multimode fibers?
  No you should not. If used with single-mode fibers the fibers serve as a mode filter and the exiting beam is still Gaussian with reduced power. In case of a multimode fiber not only the power is attenuated but also the intensity distribution ex fiber is affected.
- Is the attenuator type 48AT suitable for high power applications ?
  Unfortunately, the type 48AT attenuator is not suitable for high power applications.
  
  In the attenuator, the incoming beam is partially blocked and diffracted by a steel ball. The subsequent coupling into a single-mode fiber (PM fiber) serves as a mode filter.
  
  The suppressed power is not specifically absorbed in a light trap. Instead, it is partially diffracted and it still reaches the fiber connector, but is no longer coupled.
  
  When using the 48AT with high optical powers the diffracted portion alone is enough to destroy the fiber end-face as well as the fiber connector.